Sökning: "pyrrole"

Visar resultat 1 - 5 av 18 avhandlingar innehållade ordet pyrrole.

  1. 1. Quinone-Pyrrole Dyad Based Polymers for Organic Batteries From Design to Application

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Hao Huang; Uppsala universitet.; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organic battery; conducting polymer; quinone; polypyrrole; spectroelectrochemistry; conductance;

    Sammanfattning : Organic electrode materials are finding increasing use in energy storage devices due to their attractive properties that allow building of flexible and low weight devices in an environmentally friendlier manner than traditional alternatives. Among these organic electrode materials, conducting redox polymers (CRPs), consisting of conducing polymer (CP) with covalently attached redox active pendant groups (PG), have attracted our interests. LÄS MER

  2. 2. Analysis of melanins

    Detta är en avhandling från Gerd Odh Olsson, Dept of Pharmacology, Sölveg 10, S-223 62 Lund, Sweden

    Författare :Gerd Odh Olsson; Lund University.; Lunds universitet.; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PPT-II; PPT-I; DDT; MIF; tyrosinase related protein. dopachrome tautomerase; 3-dicarboxylic acid; pyrrole-2; 5-tricarboxylic acid; 3; thiazole-4; 5-dicarboxylic acid; Pharmacological sciences; pharmacognosy; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi;

    Sammanfattning : Mammalian melanins are of two major types, eumelanins and peheomelanins, which often occur together, then called mixed-type melanins. A method has been developed for analysing the various forms of melanins. LÄS MER

  3. 3. Cyanoacetylation of indoles, pyrroles and amines, and synthetic uses of these products

    Detta är en avhandling från Stockholm : Karolinska Institutet, Biosciences and Nutrition

    Författare :Johnny Slätt; Karolinska Institutet.; Karolinska Institutet.; Södertörns högskola.; [2005]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Indole; pyrrole; reduction; oxidation; indoline; acylation; cyanoacetylation;

    Sammanfattning : This thesis is based on an organic synthetic project aimed towards development of small molecules acting on the P2 receptor as well as development of synthetic methods to such molecules (primarily indoles and featuring isatogens in particular). The new methodology includes cyanoacetylation of indoles, pyrroles, amines, and enamines using cyanoacetic acid in acetic anhydride. LÄS MER

  4. 4. Synthesis of indole and oxindole derivates incorporating pyrrolidino, pyrrolo or imidazolo moieties

    Detta är en avhandling från Stockholm : Karolinska Institutet, Biosciences and Nutrition

    Författare :Stanley Rehn; Karolinska Institutet.; Karolinska Institutet.; [2004]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Isatin; three-component reaction; a-amino acid; azomethine ylide; pyrrolidino-3-spiro-3?-oxindole derivatives; 3-methyleneoxindole derivatives; pyrroloquinolone; TosMIC; ß-carboline; tosylimine; pyrrole; keto-enol tautomerism; indolopyran-2-one; imidazole; benzylimine; tetrahydroindole;

    Sammanfattning : The focus of this thesis is on the synthesis of oxindole- and indole-derivatives incorporating pyrrolidins, pyrroles or imidazoles moieties. Pyrrolidino-2-spiro-3'-oxindole derivatives have been prepared in high yielding three-component reactions between isatin, alpha-amino acid derivatives, and suitable dipolarophiles. LÄS MER

  5. 5. Studies toward synthesis of mono-glycosylated dipyrromethanes and analogues of the anti-cancer natural product tolyporphin

    Detta är en avhandling från Uppsala University

    Författare :Derar Al-Smadi; Uppsala universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Eschenmoser salt; dipyrromethane; porphyrin.; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Sammanfattning : The tolyporphin A structure contains a tetrapyrrolic bacteriochlorin macrocycle and also consists of two glycosyl groups directly connected to the pyrroles. In this thesis, 3-glycosylated pyrrole was reacted with Eschenmoser's salt to produce N,N-dimethylamino methylated derivative in 95 % yield. LÄS MER